Two-Tooth Hinge

Abstract

A two-tooth hinge comprises a connector plate, riveting piece, crow foot wrench, spring, riveting pin, and cradle plate, etc. The connector plate and the cradle plate are connected through the riveting piece with the riveting pin and spring. The crow foot wrench is connected to the riveting piece with the riveting pin. The connector plate teeth are on the right side of the plate. The crow foot wrench falls into the grooves of the connector plate teeth. The riveting angle of the connector plate and cradle plate is between σ2-σ1. The hinge can be adjusted at three angles and using the different holes in the connector plate, riveting piece, and cradle plate, the hinge can be adapted to various sofa dimensions.

1 . A two-tooth hinge comprising:
 a connector plate,   a riveting piece,   a crowfoot wrench,   a spring,   a riveting pin, and   a cradle plate, wherein the connector plate and the cradle plate are connected with the riveting pin through the riveting piece and with the spring and further wherein the crowfoot wrench is connected to the riveting piece with the riveting pin.   
     
     
         2 . The hinge of  claim 1  comprising a set of two teeth located on the right of the connector plate, wherein the crowfoot wrench falls into a set of grooves between the teeth of the connector plate teeth. 
     
     
         3 . The hinge of  claim 1  comprising a range of movement between the connector plate and cradle plate of approximately 105°- 125°.